Kim & Khloe Kardashian Get Down & Dirty — Watch ‘KUWTK’ Sneak Peek

The Kardashians are getting down and dirty — by rolling in the mud. That’s something we never thought we’d say! Kim and Khloe Kardashian participate in what’s meant to be a fun mud run, but it quickly turns into a sister vs. sister competition. Click to WATCH!

In a new sneak peak for the July 6 episode of Keeping Up With the Kardashians, Khloe Kardashian dissesKim Kardashianfor being lazy when it comes to working out. The two competitive sisters race each other through a muddy obstacle course, and Khloe talks the talk. Keep reading to see who comes out on top!

‘KUWTK’: Kim & Khloe Get Dirty & Competitive

Hold on, did Khloe just call Kim lazy?!

In the upcoming KUWTKepisode airing July 6, Khloe is claiming that she works out harder than her older sister who just got back her bangin’ post-baby bod.

“I’ve seen Kim workout. I’ve worked out with Kim. Kim works out in a mild form compared to me,” brags Khloe.”I workout with a vengeance. I have a purpose in there and I love to sweat.”

And that’s why she wants to go on a mud run. But she doesn’t start the course without pointing out that Kim is going to be super lax about the entire race.

Although the sisters’ have different methods of getting their fitness on, it’s clear that their individual ways are working for each of them — have you seen their bodies lately?!

‘KUWTK’: Kourtney Calls Khloe ‘Fat’

We all know how great of shape Khloe is in now — she looks better than ever! But in the episode, KourtneyKardashian calls her fat! Ouch, Kourt!

It sounds harsh, but judging by Khloe’s hysterical laughs after Kourtney’s comment, we think it was all just a joke. But we won’t know until the fat lady sings (as Lord Disick points out in the preview).

What do you think, HollywoodLifers? Are these sisters too competitive with each other? Let us know your thoughts below!